Crab feed for silver-white juvenile crab weighing 2 grams or above in molting period and preparation method of crab feed

A crab feed and molting technology, applied in the field of crab feed, can solve the problems of affecting the survival rate and growth rate of juvenile crabs during the molting period, difficult to meet the nutritional needs of juvenile crabs during the molting period, and unreasonable feeding, and achieve rich raw materials. species, the effect of ensuring the degree of food preference, and the effect of increasing feed intake

Pending Publication Date: 2021-04-09
马鞍山市徽农农业科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, in crab breeding, the division of crab feed is not detailed enough. Conventional juvenile crab feed can hardly meet the nutritional needs of juvenile crabs in the molting stage. There are unreasonable feeding, which affects the survival rate and growth rate of juvenile crabs in the molting stage.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] A kind of crab feed for crab molting stage, its raw material comprises by weight: 18 parts of fish meal, 6 parts of silkworm chrysalis powder, 14 parts of fermented blood meal, 3 parts of egg yolk powder, 2 parts of fish scale powder, 0.05 part of ecdysin, and dried potato 8 parts, 0.1 part of multivitamin, 3 parts of kelp powder, 32 parts of bean cake powder, 12 parts of bran, 2 parts of mineral salt, 2 parts of Scutellaria baicalensis extract, 1.5 parts of adhesive; Among them, the preparation of Scutellaria baicalensis extract is to crush Scutellaria baicalensis , extracted with water, filtered, and then the filter residue was refluxed for alcohol extraction, filtered, the water-extracted filtrate and the alcohol-extracted filtrate were combined, concentrated under reduced pressure, and dried to obtain the Scutellaria baicalensis extract.

[0014] The preparation method is as follows: crush dried potatoes, then add fish meal, silkworm chrysalis powder, fermented blood...

Embodiment 2

[0016] A kind of crab feed for crab molting stage, its raw materials include by weight: 15 parts of fish meal, 8 parts of silkworm chrysalis powder, 12 parts of fermented blood meal, 2 parts of egg yolk powder, 3 parts of fish scale powder, 0.1 part of ecdysin, and dried potato 5 parts, 0.1 part of multivitamin, 4 parts of kelp powder, 35 parts of bean cake powder, 13 parts of bran, 1 part of mineral salt, 2 parts of Scutellaria baicalensis extract, 2 parts of adhesive.

[0017] The preparation method is as follows: crush dried potatoes, then add fish meal, silkworm chrysalis powder, fermented blood meal, egg yolk powder, fish scale powder, kelp powder, bean cake powder, bran, stir and mix, add water to stir, steam, and then add shell The compound vitamin, the multivitamin, the mineral salt, and the baicalin extract are mixed to obtain a mixture; the mixture is extruded and granulated, and the granulation diameter is 3-4mm.

Embodiment 3

[0019] A kind of crab feed for crab molting stage, its raw material comprises by weight: 17 parts of fish meal, 7 parts of silkworm chrysalis powder, 14 parts of fermented blood meal, 2.5 parts of egg yolk powder, 4 parts of fish scale powder, 0.3 part of ecdysin, and dried potato 6 parts, 0.2 parts of multivitamin, 3 parts of kelp powder, 30 parts of bean cake powder, 16 parts of bran, 2.5 parts of mineral salt, 3 parts of Scutellaria baicalensis extract, 1 part of binder.

[0020] The preparation method is as follows: crush dried potatoes, then add fish meal, silkworm chrysalis powder, fermented blood meal, egg yolk powder, fish scale powder, kelp powder, bean cake powder, bran, stir and mix, add water to stir, steam, and then add shell The compound vitamin, the multivitamin, the mineral salt, and the baicalin extract are mixed to obtain a mixture; the mixture is extruded and granulated, and the granulation diameter is 3-4mm.

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PUM

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Abstract

The invention discloses a crab feed for a silver-white juvenile crab weighing 2 grams or above in a molting period and a preparation method of the crab feed, and relates to the technical field of crab feeds. The crab feed comprises the following raw materials in parts by weight: 15-20 parts of fish meal, 4-8 parts of silkworm chrysalis meal, 12-18 parts of fermented blood meal, 2-4 parts of yolk powder, 2-4 parts of fish scale powder, 0.05-0.3 part of molting hormones, 5-8 parts of dried potatoes, 0.05-0.2 part of compound vitamins, 2-4 parts of kelp powder, 30-35 parts of soybean cake powder, 10-16 parts of bran, 1-3 parts of mineral salt, 1-3 parts of a scutellaria baicalensis extract and 0.5-2 parts of adhesive. The preparation method comprises the following steps: crushing the dried potatoes, adding the fish meal, the silkworm chrysalis meal, the fermented blood meal, the yolk powder, the fish scale powder, the kelp powder, the soybean cake powder and the bran, performing stirring and mixing, adding water, performing blending, performing steaming, adding the rest raw materials, performing mixing, and performing puffing and granulating to obtain the feed. The raw materials are reasonably proportioned, the nutritional requirements of the silver-white juvenile crabs weighing 2 grams or above in the molting period are met, the molting process can be accelerated, smooth molting is guaranteed, growth of the silver-white juvenile crabs weighing 2 grams or above is promoted, and the survival rate of the silver-white juvenile crabs weighing 2 grams or above in the molting period is increased.

Description

technical field [0001] The invention relates to the technical field of crab feed, in particular to a crab feed in the molting stage of crabs and a preparation method thereof. Background technique [0002] Crab is a crustacean. Its meat is tender, delicious, and has high nutritional value, so it is deeply loved by people. The whole growth process of crabs can be roughly divided into several stages: daphnia, megalopa, larvae, juvenile crabs and adult crabs. It takes about 10 minutes to molt from the stage I daphnia hatched from eggs to the last molt. (Skin) About 18 times, of which, zoan larvae generally need 5 times to molt to become megalopa, and megalopa moult once more to become stage I crabs, and stage III crabs then enter the stage of juvenile crabs. Before the gonads are immature, the juvenile crabs have a long period of time and are called "buckle crabs". They continue to grow, and with the increase in body size, the shell color is yellowish, and they are called "yell...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K50/80A23K10/22A23K10/20A23K10/24A23K10/12A23K10/26A23K10/35A23K20/174A23K10/30A23K10/37A23K40/10A23K20/20A23K20/105
CPCA23K50/80A23K10/22A23K10/20A23K10/24A23K10/12A23K10/26A23K10/35A23K20/174A23K10/30A23K10/37A23K40/10A23K20/20A23K20/105Y02P60/87Y02A40/818
Inventor 徐文杰徐元元张建涛
Owner 马鞍山市徽农农业科技发展有限公司
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